Diff: main_echo.cpp

Revision:

2:352f66e435da

Child:

3:335c4028bf36

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main_echo.cpp	Tue Nov 15 08:41:29 2016 +0000
@@ -0,0 +1,96 @@
+#include "mbed.h"
+#include "nRF24L01P.h"
+
+//***************************************************************************//
+// !!! SETTINGS !!!
+
+#define DATA_RATE       NRF24L01P_DATARATE_250_KBPS    
+//#define DATA_RATE       NRF24L01P_DATARATE_1_MBPS     
+//#define DATA_RATE       NRF24L01P_DATARATE_2_MBPS    
+
+#define POWER           NRF24L01P_TX_PWR_ZERO_DB
+//#define POWER           NRF24L01P_TX_PWR_MINUS_6_DB
+//#define POWER           NRF24L01P_TX_PWR_MINUS_12_DB
+//#define POWER           NRF24L01P_TX_PWR_MINUS_18_DB
+
+#define CHANNEL         0 // 0 - 30
+
+
+#define RX_ADDRESS      ((unsigned long long) 0xABCDEF02)
+#define TX_ADDRESS      ((unsigned long long) 0xABCDEF00)
+#define ECHO_DELAY      0.2
+
+#define TRANSFER_SIZE   1
+
+//***************************************************************************//
+
+
+
+Serial pc(USBTX, USBRX); // tx, rx
+nRF24L01P radio(PB_15, PB_14, PB_13, PB_12, PB_1, PB_2);    // mosi, miso, sck, csn, ce, irq
+
+
+DigitalOut myled1(LED1);
+InterruptIn button(USER_BUTTON);
+
+bool send_data = false;
+
+void send_packet(){
+    send_data = true;
+}
+
+int main() {
+
+    
+    char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
+
+    pc.baud(115200);
+    radio.powerDown();
+    radio.powerUp();
+    
+    button.rise(&send_packet);
+    
+    radio.setAirDataRate(DATA_RATE);
+    radio.setRfOutputPower(POWER);
+    radio.setRfFrequency(NRF24L01P_MIN_RF_FREQUENCY + 4 * CHANNEL);
+    radio.setRxAddress(RX_ADDRESS, 4);
+    radio.setTxAddress(TX_ADDRESS, 4);
+    radio.setCrcWidth(NRF24L01P_CRC_8_BIT);
+
+    // Display the (default) setup of the nRF24L01+ chip
+    pc.printf( "nRF24L01+ Frequency    : %d MHz\r\n",  radio.getRfFrequency() );
+    pc.printf( "nRF24L01+ Output power : %d dBm\r\n",  radio.getRfOutputPower() );
+    pc.printf( "nRF24L01+ Data Rate    : %d kbps\r\n", radio.getAirDataRate() );
+    pc.printf( "nRF24L01+ TX Address   : 0x%010llX\r\n", radio.getTxAddress() );
+    pc.printf( "nRF24L01+ RX Address   : 0x%010llX\r\n", radio.getRxAddress() );
+
+
+    radio.setTransferSize( TRANSFER_SIZE );
+    
+    myled1 = 0;
+
+    radio.setReceiveMode();
+    radio.enable();
+
+    while (1) {
+        int tx_bytes;
+        int rx_bytes;
+
+        if(radio.readable()){
+
+            rx_bytes = radio.read(NRF24L01P_PIPE_P0, rxData, sizeof(rxData));
+            myled1 = 1;
+            
+            wait(ECHO_DELAY);
+            
+            tx_bytes = radio.write(NRF24L01P_PIPE_P0, txData, TRANSFER_SIZE);
+            myled1 = 0;
+        }
+        
+        if(send_data){
+            tx_bytes = radio.write(NRF24L01P_PIPE_P0, txData, TRANSFER_SIZE);
+            send_data = false;
+        }
+        
+    }
+}